package com.servlet.maintenance.student;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.dao.impl.CourseOP;

public class CourseOpServlet extends HttpServlet {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	/**
	 * Constructor of the object.
	 */
	public CourseOpServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		HttpSession mySession = request.getSession();
		String majorId = (String)mySession.getAttribute("major_id");
		String classId = (String)mySession.getAttribute("class_id");
		String className = (String)mySession.getAttribute("class_name");
		String id = request.getParameter("id");
	  	if(id != null){
	  		int majId = Integer.parseInt(majorId);
	  		int courseId = Integer.parseInt(id);
	  		String courseName = request.getParameter("course_name");
	  		//int success = CourseOP.updateCourse(courseId,courseName,majId);
	  		CourseOP.updateCourse(courseId,courseName,majId);
	  	}
	  	String url = "manager/student/view_student.jsp?id="+classId+"&name="+className;
		response.sendRedirect(url);
		
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request,response);
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
